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Shirk, J.S.; Thesis, Ph.D.; of California, Univ.; Shirk, Berkeley(1966); J.S.; Pimentel, G.C., Potential functions and the bonding in the XCO free radicals, J. Am. Chem. Soc., 1968, 90, 13, 3349, https://doi.org/10.1021/ja01015a009 . [all data]